Friday, December 7, 2012

I would like to advertise a PyPy-related summer internship at
the National Center for Atmospheric Research, which is located in lovely
Boulder, Colorado. As for the last year, the mentor will be Davide del Vento,
with my possible support on the PyPy side.

Only students authorized to work for any employer in the United
States will be considered for the SIParCS program.

Must be a graduate or under graduate who has completed their sophomore year.

If you happen to fulfill the requirements, to me this sounds like
a great opportunity to spend a summer at NCAR in Boulder hacking on atmospheric
models using PyPy.

Cheers,
fijal

Hello everyone

I would like to advertise a PyPy-related summer internship at
the National Center for Atmospheric Research, which is located in lovely
Boulder, Colorado. As for the last year, the mentor will be Davide del Vento,
with my possible support on the PyPy side.

Tuesday, December 4, 2012

Just a short update on November's work: we're now passing about 194 of
approximately 355 modules of CPython's regression test suite, up from passing
160 last month. Many test modules only fail a small number of individual tests
now.

We'd like to thank Amaury Forgeot d'Arc for his contributions, in particular he
has made significant progress on updating CPyExt for Python 3 this month.

Some other highlights:

test_marshal now passes, and there's been significant progress on
pickling (thanks Kenny Levinsen and Amaury for implementingint.{to,from}_bytes)

We now have a _posixsubprocess module

More encoding related fixes, which affects many failing tests

_sre was updated and now test_re almost passes

Exception behavior is almost complete per the Python 3 specs, what's mostly
missing now are the new __context__ and __traceback__ attributes (PEP
3134)

Fixed some crashes and deadlocks occurring during the regression tests

We merged the unicode-strategies branch both to default and to py3k: now we
have versions of lists, dictionaries and sets specialized for unicode
elements, as we already had for strings.

However, for string-specialized containers are still faster in some cases
because there are shortcuts which have not been implemented for unicode yet
(e.g., constructing a set of strings from a list of strings). The plan is to
completely kill the shortcuts and improve the JIT to produce the fast
version automatically for both the string and unicode versions, to have a
more maintainable codebase without sacrificing the speed. The autoreds
branch (already merged) was a first step in this direction.

Just a short update on November's work: we're now passing about 194 of
approximately 355 modules of CPython's regression test suite, up from passing
160 last month. Many test modules only fail a small number of individual tests
now.

We'd like to thank Amaury Forgeot d'Arc for his contributions, in particular he
has made significant progress on updating CPyExt for Python 3 this month.

Some other highlights:

test_marshal now passes, and there's been significant progress on
pickling (thanks Kenny Levinsen and Amaury for implementingint.{to,from}_bytes)

We now have a _posixsubprocess module

More encoding related fixes, which affects many failing tests

_sre was updated and now test_re almost passes

Exception behavior is almost complete per the Python 3 specs, what's mostly
missing now are the new __context__ and __traceback__ attributes (PEP
3134)

Fixed some crashes and deadlocks occurring during the regression tests

We merged the unicode-strategies branch both to default and to py3k: now we
have versions of lists, dictionaries and sets specialized for unicode
elements, as we already had for strings.

However, for string-specialized containers are still faster in some cases
because there are shortcuts which have not been implemented for unicode yet
(e.g., constructing a set of strings from a list of strings). The plan is to
completely kill the shortcuts and improve the JIT to produce the fast
version automatically for both the string and unicode versions, to have a
more maintainable codebase without sacrificing the speed. The autoreds
branch (already merged) was a first step in this direction.